Improvement in gotton-gins



vdrawn through the upper ribs.

UNITED VSTATFS,

PATENT OFFICE.

JAMEs F. OBR, oF oRR'vILLF, ALABAMA.

IMPROVEMENT IN COTTON-cms.

Spcciiication formingpart of Letters Patent No. 16:394. dated January13, 1857.

,a vertical--longitudinal Section of a'cotton-gin with my improvement.

' The nature of my invention consists in constructing the gin withadouble series of short ribs, so placed that the cotton shall be-draw'nlthrough'the upper. series, and that the upper extremities of the lowerribs shall be a short distance in front of the lower extremities of theupper ribs, leaving thereby openings between the upper and lower ribs, ashort distance belowth'e points at which the cotton is A portion of theseed passes through these openings, and the discharge is therebyfacilitated.,A

` -In the drawing, S is one of the saws, and".

B the brush cylinder. R is the upper rib, passing -down toward thesaw-cylinder, and

R the lower rib, curving upward and terminating in advance'of rib R, ashort distance below the-point a, at which the cotton is drawn throughthe upper ribs. This leaves a'pas sage, P, between-ribs R and B', andbetween the saw-cylinder and ij-ib R', for ai portion of the seed topass through, the remainder passingover ,the lower rib in the usualmanner. The-straight ribsv C prevent the seed passing through opening Pfrom being carried under the brushes.

Ihe advantage of this construction consists inthe `rapid discharge ofseed-which it admits of, thereby greatly facilitating theoperation ofthe machine. v

What lI claim,l and desire to secure by Letters Patent, is

The combiuationof the two short ribsR and R', the latter arranged inrelation to the saw-cylinder, substantially as and for the purposesdescribed. I

In testimony whereof I have hereunto signed my name before twosubscribing witnesses.

JAS. F. ORB. Witnesses:

GEO. PATTEN, l JOHN S. HOLLINGSHEAD.

